cells and tissue
TRANSCRIPT
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
About this Chapter: Cell and Tissue
• Cell structure and types• Cell differentiation• Compartmentalization• Mechanical properties and cell functions• Cell junctions• Tissue types and characteristics
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Overview: Cells to Organ Systems
Figure 3-4a-c: Anatomy Summary: Levels of Organization—System to Cell For more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Overview: Cells to Organ Systems
Figure 3-4d, e: Anatomy Summary: Levels of Organization—System to Cell For more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Barrier from • Outside• ECF
• Cell gateway• Cell structure• Phospholipid bilayer
Cell Membrane
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Cell Membrane
Figure 3-5: The cell membraneFor more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Cytosol• Organelles• Inclusion
• Dissolved• Insoluble
Cell Cytoplasm
Figure 3-3: A map for the study of cell structureFor more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Ribosomes• Free• Fixed• Protein synthesis
• Vaults
Nonmenbranous Organelles
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Nonmenbranous Organelles
Figure 3-6: Ribosomes are nonmembranous organelles composed of RNA and protein
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Strength• Support• Shape• Transport• Cell to cell links• Protein fibers
• Microfilaments• Intermediate • Microtubules
Cytoskeleton
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
Cytoskeleton
Figure 3-7: The cytoskeleton and cytoplasmic protein fibersFor more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Centrosomes organize microtubules• Centrioles: bundles of microtubules
• Pull chromosomes, form core in cilia
Centrosomes and Centrioles
Figure 3-8a,c: Centrioles, cilia, and flagella For more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Motor proteins• 2:9 microtubule
pattern• Cilia move fluids• Flagella move sperm
cell
Cilia and Flagella
Figure 3-8c, d: Centrioles, cilia, and flagella For more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Internal lumen and membranes for protected reactions
• Mitochondria: Generates cell energy (ATP) , have DNA
Membranous Organelles: Create cell compartments
Figure 3-9: Mitochondria For more Visit www.dentaltutor.in
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Copyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings
• Smooth ER: Lipid synthesis & conversion • Rough ER: Ribosomes, protein assembly &
transport vesicles
Endoplasmic Reticulum (ER) ad Ribosomes
Figure 3-10: The endoplasmic reticulum For more Visit www.dentaltutor.in